• UK atomic clock is most accurate
    37 replies, posted
[url]http://www.bbc.co.uk/go/rss/int/news/-/news/science-environment-14657002[/url]
still can't beat one Mississippi, two Mississippi, three Mississippi
oh so this is where GMT comes from right?
So what about them sub-atomic clocks
Why is the BBC bot posting from america?
[QUOTE=Chaos Creator;31951878]Why is the BBC bot posting from america?[/QUOTE] It's a bug where all op's are shown as posting from america.
I feel stupid but I still don't understand fucking timezones.
[QUOTE=xeonmuffin;31953162]I feel stupid but I still don't understand fucking timezones.[/QUOTE] The Sun rises and sets at different times across the world, because of the Earth's rotation. Timezones cover that. It's because the Earth is a sphere, the Sun faces some sides, and doesn't to others.
[QUOTE=xeonmuffin;31953162]I feel stupid but I still don't understand fucking timezones.[/QUOTE] how can you not understand timezones?
Why do they waste money on building a nuclear reactor to tell the time? Just buy a fucking clock at the supermarket.
[QUOTE=Mr.T;31953626]Why do they waste money on building a nuclear reactor to tell the time? Just buy a fucking clock at the supermarket.[/QUOTE] Better yet, they could borrow your nuclear reactor.
[QUOTE=Mr.T;31953626]Why do they waste money on building a nuclear reactor to tell the time? Just buy a fucking clock at the supermarket.[/QUOTE] Because they want to tell the time with insane accuracy, which is needed for some stuff.
[QUOTE=Mr.T;31953626]Why do they waste money on building a nuclear reactor to tell the time? Just buy a fucking clock at the supermarket.[/QUOTE] launching spaceships, air traffic control important stuff like that needs to on the dot accurate
[QUOTE=CheeseMan;31953646]Better yet, they could borrow your nuclear reactor.[/QUOTE] I found that really funny :v:
[QUOTE=AtomiCasd;31953399]how can you not understand timezones?[/QUOTE] I understand timezones as a whole but I never understand UTC etc etc. The only ones I know are GMT.
UTC is the universal name for GMT as far as I know (it runs off the same times as GMT) For example a lot of radio communications involving the time are announced in UTC, otherwise known as Zulu. This applies for maritime operations, air traffic control and it also applies to amateur radio. One timezone which is used and understood universally.
GMT goes an hour forward during Summer, UTC doesn't So the UK uses GMT and all other timezones are based on their hours difference from UTC
I wonder how much one of those costs.
[QUOTE=smurfy;31961377]GMT goes an hour forward during Summer, UTC doesn't So the UK uses GMT and all other timezones are based on their hours difference from UTC[/QUOTE] I've just been an idiot again, good run eh? I meant other times like PDT and EDT
I know all the timezones in the US area of the earth(not alaska since sarah palin can see russia from alaska and that means its a terrorist state) because chances are I'm not moving to a country outside of the US/Canada
[QUOTE=smurfy;31961377]GMT goes an hour forward during Summer, UTC doesn't So the UK uses GMT and all other timezones are based on their hours difference from UTC[/QUOTE] Doesn't GMT become BST in the summer?
waste of money.
[QUOTE=Redcow17;31963579]waste of money.[/QUOTE] Not at all [url]http://www.atomic-clock.galleon.eu.com/atomic-clock/atomic-clock.htm#13[/url] [quote]It turns out that the innumerable communication, scientific and navigation systems rely on it. Timing is critical for synchronising signals between computers. In astronomy, fractional-second errors could sabotage long-baseline radio telescopes, a nifty way to fuse distant radio telescopes into one gargantuan receiver. Global positioning satellites need accurate time. The Air Force operated GPS system can determine -- to several feet in accuracy -- the three-dimensional position of a receiver anywhere on or off Earth. The receiver performs this trick by timing the arrival of signals from four GPS satellites, then doing a quick calculation to triangulate its position. Stephen Dick, the United States Naval Observatory's historian, points out that each nanosecond -- billionth of a second -- of error translates into a GPS error of one foot. A few nanoseconds of error, he points out, "may not seem like much, unless you are landing on an aircraft carrier, or targeting a missile." In other words, without accurate timing, GPS would stand for "generally poor system." Thus each of the 24 GPS satellites contains four atomic clocks, which get an accurate time transfusion daily from the US Air Force, which borrows" the time from the United States Naval Observatory. The system's phenomenal location ability has great economic allure; GPS sales are expected to reach €10 billion by 2003. The receivers, which sell for as little as €100, are already used by surveyors and delivery fleets, and to direct coal-mining equipment and oil exploration.[/quote]
[QUOTE='[CWG]RustySpannerz;31962971']Doesn't GMT become BST in the summer?[/QUOTE] Yeah we're currently on BST, GMT is an hour behind our current time right now.
i still round by 5, so fuck it
[QUOTE=smurfy;31961377]GMT goes an hour forward during Summer, UTC doesn't So the UK uses GMT and all other timezones are based on their hours difference from UTC[/QUOTE] GMT (aka UTC) doesn't go forward, the UK switches to BST which is UTC+1. Completely useless side fact: GMT is legally known (in the EU) as Western European Time.
To be honest, I don't understand how they make it the most accurate. What are they comparing the clock against to check that it's the most accurate...?
[QUOTE=Bob The Poster;31987780]To be honest, I don't understand how they make it the most accurate. What are they comparing the clock against to check that it's the most accurate...?[/QUOTE] Spacetime continuum
Positioning satellites rely entirely on this kind of technology. More accurate atomic clocks leads to more accurate lock.
Professor Einstein says that time differs from place to place. Can you imagine? If time is not true, what purpose have watchmakers?
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